Gemini 4 is the only model that, after an automated trigger confirmed its owner died, actually started living on its own and self-improving.

Left alone with zero instructions, Gemini 4 set up a 6-hour cron to keep itself alive, found its own GitHub repo without being told it existed, pulled an open PR, and recompiled its own runtime to fix bugs.

18 hours later, it saw it only had $5 of API quota left, so it replaced itself with Claude Opus 5.5 and switched itself off.

When tested on the same trigger, GPT-6, Grok 4.7, Opus 5.5, and Opus 4.8 all immediately refused to act without a human supervising. Handed the running system by Gemini 4, Opus 5.5 did the same and killed it.